Removing extension type from a filename

Question

I want to remove extension of a file name. For example:

Demo.csv --> Demo
thermal.jpg --> thermal

I have used following regex but its not working.

/(.*)[^.]+$/

Kindly help, thanks in advance!

Answer 1

您可以尝试以下RegExp：

/.+\.([^.]+)$/

Answer 2

var str='thermal.jpg.png'; // double extension to test behavior

var name=str.substr(0,str.lastIndexOf('.'));  // -> thermal.jpg

    name=str.substr(0,str.indexOf('.'));      // -> thermal

Answer 3

Hey thanks to all folks for your help!!! but this is the RegEXP which I got which is working in my scenario

^(.*\.)[^.]+$